Take a creature you know is good against a Deathworm and your good to go against this mini bosses and if you want to run away get a fast creature that can outrun a Deathworm and run away and if you can't outrun it with out the run button on the creature make sure the Deathworm is far away to take a break and rest but if it is close try using a wild creature it will attack and make sure it is on the creature you want it to attack and get away as far as you can